диагностика такая
user@computer1$ systemctl status bind
× bind.service - Berkeley Internet Name Domain (DNS)
Loaded: loaded (/lib/systemd/system/bind.service; enabled; vendor preset: disabled)
Active: failed (Result: exit-code) since Thu 2022-02-17 12:55:50 +05; 7h ago
Process: 2550 ExecStartPre=/etc/init.d/bind rndc_keygen (code=exited, status=0/SUCCESS)
Process: 2576 ExecStartPre=/usr/sbin/named-checkconf $CHROOT -z /etc/named.conf (code=exited, status=0/SUCCESS)
Process: 2744 ExecStart=/usr/sbin/named $EXTRAOPTIONS $CHROOT $RETAIN_CAPS (code=exited, status=1/FAILURE)
CPU: 38ms
фев 17 12:55:49 computer1 named[2766]: listening on IPv6 interfaces, port 53
фев 17 12:55:49 computer1 named[2766]: binding TCP socket: address in use
фев 17 12:55:49 computer1 named[2766]: listening on IPv4 interface lo, 127.0.0.1#53
фев 17 12:55:49 computer1 named[2766]: binding TCP socket: address in use
фев 17 12:55:49 computer1 named[2766]: unable to listen on any configured interfaces
фев 17 12:55:49 computer1 named[2766]: loading configuration: failure
фев 17 12:55:49 computer1 named[2766]: exiting (due to fatal error)
фев 17 12:55:50 computer1 systemd[1]: bind.service: Control process exited, code=exited, status=1/FAILURE
фев 17 12:55:50 computer1 systemd[1]: bind.service: Failed with result 'exit-code'.
фев 17 12:55:50 computer1 systemd[1]: Failed to start Berkeley Internet Name Domain (DNS).
user@computer1 ~ $ journalctl -u bind
фев 16 12:09:10 computer1 systemd[1]: Starting Berkeley Internet Name Domain (DNS)...
фев 16 12:09:12 computer1 bind[2623]: Generating RNDC key:
фев 16 12:09:12 computer1 bind[2651]: wrote key file "/var/lib/bind/etc/rndc.key"
фев 16 12:09:13 computer1 bind[2623]: [ DONE ]
фев 16 12:09:14 computer1 named-checkconf[2781]: zone localhost/IN: loaded serial 2021102900
фев 16 12:09:14 computer1 named-checkconf[2781]: zone localdomain/IN: loaded serial 2021102900
фев 16 12:09:14 computer1 named-checkconf[2781]: zone 127.in-addr.arpa/IN: loaded serial 2021102900
фев 16 12:09:14 computer1 named-checkconf[2781]: zone 0.in-addr.arpa/IN: loaded serial 2021102900
фев 16 12:09:14 computer1 named-checkconf[2781]: zone 255.in-addr.arpa/IN: loaded serial 2021102900
фев 16 12:09:15 computer1 named[3012]: starting BIND 9.11.36 (Extended Support Version) <id:68dbd5b>
фев 16 12:09:15 computer1 named[3012]: adjusted limit on open files from 524288 to 4096
фев 16 12:09:15 computer1 named[3012]: found 4 CPUs, using 4 worker threads
фев 16 12:09:15 computer1 named[3012]: using 3 UDP listeners per interface
фев 16 12:09:15 computer1 named[3012]: using up to 4096 sockets
фев 16 12:09:15 computer1 named[3012]: loading configuration from '/etc/named.conf'
фев 16 12:09:15 computer1 named[3012]: reading built-in trust anchors from file '/etc/bind.keys'
фев 16 12:09:15 computer1 named[3012]: using default UDP/IPv4 port range: [1024, 65535]
фев 16 12:09:15 computer1 named[3012]: using default UDP/IPv6 port range: [1024, 65535]
фев 16 12:09:15 computer1 named[3012]: listening on IPv6 interfaces, port 53
фев 16 12:09:15 computer1 named[3012]: binding TCP socket: address in use
фев 16 12:09:15 computer1 named[3012]: listening on IPv4 interface lo, 127.0.0.1#53
фев 16 12:09:15 computer1 named[3012]: binding TCP socket: address in use
фев 16 12:09:15 computer1 named[3012]: unable to listen on any configured interfaces
фев 16 12:09:15 computer1 named[3012]: loading configuration: failure
фев 16 12:09:15 computer1 named[3012]: exiting (due to fatal error)
фев 16 12:09:15 computer1 systemd[1]: bind.service: Control process exited, code=exited, status=1/FAILURE
фев 16 12:09:15 computer1 systemd[1]: bind.service: Failed with result 'exit-code'.
фев 16 12:09:15 computer1 systemd[1]: Failed to start Berkeley Internet Name Domain (DNS).
фев 16 12:09:56 computer1 systemd[1]: /lib/systemd/system/bind.service:11: PIDFile= references a path below legacy directory /var/run/, updating /var/run/named.pid → /run/named.pid; please update the unit file
фев 16 12:09:56 computer1 systemd[1]: /lib/systemd/system/bind.service:11: PIDFile= references a path below legacy directory /var/run/, updating /var/run/named.pid → /run/named.pid; please update the unit file
фев 16 12:09:56 computer1 systemd[1]: /lib/systemd/system/bind.service:11: PIDFile= references a path below legacy directory /var/run/, updating /var/run/named.pid → /run/named.pid; please update the unit file
-- Boot 19516913159643f090cd062f0491a8d0 --
фев 16 13:11:45 computer1 systemd[1]: Starting Berkeley Internet Name Domain (DNS)...
фев 16 13:11:48 computer1 named-checkconf[2548]: zone localhost/IN: loaded serial 2021102900
фев 16 13:11:48 computer1 named-checkconf[2548]: zone localdomain/IN: loaded serial 2021102900
фев 16 13:11:48 computer1 named-checkconf[2548]: zone 127.in-addr.arpa/IN: loaded serial 2021102900
фев 16 13:11:48 computer1 named-checkconf[2548]: zone 0.in-addr.arpa/IN: loaded serial 2021102900
фев 16 13:11:48 computer1 named-checkconf[2548]: zone 255.in-addr.arpa/IN: loaded serial 2021102900
фев 16 13:11:48 computer1 named[2732]: starting BIND 9.11.36 (Extended Support Version) <id:68dbd5b>
фев 16 13:11:48 computer1 named[2732]: adjusted limit on open files from 524288 to 4096
фев 16 13:11:48 computer1 named[2732]: found 4 CPUs, using 4 worker threads
фев 16 13:11:48 computer1 named[2732]: using 3 UDP listeners per interface
фев 16 13:11:48 computer1 named[2732]: using up to 4096 sockets
фев 16 13:11:48 computer1 named[2732]: loading configuration from '/etc/named.conf'